1 /*******************************************************************************
3 * Module Name: rsaddr - Acpi_rs_address16_resource
4 * Acpi_rs_address16_stream
5 * Acpi_rs_address32_resource
6 * Acpi_rs_address32_stream
9 ******************************************************************************/
12 * Copyright (C) 2000 R. Byron Moore
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
33 #define _COMPONENT RESOURCE_MANAGER
34 MODULE_NAME ("rsaddr")
37 /*******************************************************************************
39 * FUNCTION: Acpi_rs_address16_resource
41 * PARAMETERS: Byte_stream_buffer - Pointer to the resource input byte
43 * Bytes_consumed - u32 pointer that is filled with
44 * the number of bytes consumed from
45 * the Byte_stream_buffer
46 * Output_buffer - Pointer to the user's return buffer
47 * Structure_size - u32 pointer that is filled with
48 * the number of bytes in the filled
51 * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
53 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
54 * structure pointed to by the Output_buffer. Return the
55 * number of bytes consumed from the byte stream.
57 ******************************************************************************/
60 acpi_rs_address16_resource (
61 u8
*byte_stream_buffer
,
66 u8
*buffer
= byte_stream_buffer
;
67 RESOURCE
*output_struct
= (RESOURCE
*) * output_buffer
;
71 u32 struct_size
= sizeof(ADDRESS16_RESOURCE
) +
72 RESOURCE_LENGTH_NO_DATA
;
76 * Point past the Descriptor to get the number of bytes consumed
80 MOVE_UNALIGNED16_TO_16 (&temp16
, buffer
);
82 *bytes_consumed
= temp16
+ 3;
84 output_struct
->id
= address16
;
86 output_struct
->length
= struct_size
;
89 * Get the Resource Type (Byte3)
94 /* Values 0-2 are valid */
96 return (AE_AML_ERROR
);
99 output_struct
->data
.address16
.resource_type
= temp8
& 0x03;
102 * Get the General Flags (Byte4)
108 * Producer / Consumer
110 output_struct
->data
.address16
.producer_consumer
= temp8
& 0x01;
115 output_struct
->data
.address16
.decode
= (temp8
>> 1) & 0x01;
120 output_struct
->data
.address16
.min_address_fixed
= (temp8
>> 2) & 0x01;
125 output_struct
->data
.address16
.max_address_fixed
= (temp8
>> 3) & 0x01;
128 * Get the Type Specific Flags (Byte5)
133 if (MEMORY_RANGE
== output_struct
->data
.address16
.resource_type
) {
134 output_struct
->data
.address16
.attribute
.memory
.read_write_attribute
=
135 (u16
) (temp8
& 0x01);
136 output_struct
->data
.address16
.attribute
.memory
.cache_attribute
=
137 (u16
) ((temp8
>> 1) & 0x0F);
141 if (IO_RANGE
== output_struct
->data
.address16
.resource_type
) {
142 output_struct
->data
.address16
.attribute
.io
.range_attribute
=
143 (u16
) (temp8
& 0x03);
147 /* BUS_NUMBER_RANGE == Address32_data->Resource_type */
148 /* Nothing needs to be filled in */
153 * Get Granularity (Bytes 6-7)
156 MOVE_UNALIGNED16_TO_16 (&output_struct
->data
.address16
.granularity
,
160 * Get Min_address_range (Bytes 8-9)
163 MOVE_UNALIGNED16_TO_16 (&output_struct
->data
.address16
.min_address_range
,
167 * Get Max_address_range (Bytes 10-11)
170 MOVE_UNALIGNED16_TO_16
171 (&output_struct
->data
.address16
.max_address_range
,
175 * Get Address_translation_offset (Bytes 12-13)
178 MOVE_UNALIGNED16_TO_16
179 (&output_struct
->data
.address16
.address_translation_offset
,
183 * Get Address_length (Bytes 14-15)
186 MOVE_UNALIGNED16_TO_16
187 (&output_struct
->data
.address16
.address_length
,
191 * Resource Source Index (if present)
196 * This will leave us pointing to the Resource Source Index
197 * If it is present, then save it off and calculate the
198 * pointer to where the null terminated string goes:
199 * Each Interrupt takes 32-bits + the 5 bytes of the
200 * stream that are default.
202 if (*bytes_consumed
> 16) {
203 /* Dereference the Index */
206 output_struct
->data
.address16
.resource_source_index
=
209 /* Point to the String */
213 /* Copy the string into the buffer */
217 while (0x00 != *buffer
) {
218 output_struct
->data
.address16
.resource_source
[index
] =
226 * Add the terminating null
228 output_struct
->data
.address16
.resource_source
[index
] = 0x00;
230 output_struct
->data
.address16
.resource_source_string_length
=
234 * In order for the Struct_size to fall on a 32-bit boundry,
235 * calculate the length of the string and expand the
236 * Struct_size to the next 32-bit boundry.
238 temp8
= (u8
) (index
+ 1);
239 struct_size
+= ROUND_UP_TO_32_bITS (temp8
);
240 output_struct
->length
= struct_size
;
243 output_struct
->data
.address16
.resource_source_index
= 0x00;
244 output_struct
->data
.address16
.resource_source_string_length
= 0;
245 output_struct
->data
.address16
.resource_source
[0] = 0x00;
249 * Return the final size of the structure
251 *structure_size
= struct_size
;
257 /*******************************************************************************
259 * FUNCTION: Acpi_rs_address16_stream
261 * PARAMETERS: Linked_list - Pointer to the resource linked list
262 * Output_buffer - Pointer to the user's return buffer
263 * Bytes_consumed - u32 pointer that is filled with
264 * the number of bytes of the
267 * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
269 * DESCRIPTION: Take the linked list resource structure and fills in the
270 * the appropriate bytes in a byte stream
272 ******************************************************************************/
275 acpi_rs_address16_stream (
276 RESOURCE
*linked_list
,
280 u8
*buffer
= *output_buffer
;
283 NATIVE_CHAR
*temp_pointer
= NULL
;
288 * The descriptor field is static
294 * Save a pointer to the Length field - to be filled in later
296 length_field
= buffer
;
300 * Set the Resource Type (Memory, Io, Bus_number)
302 temp8
= (u8
) (linked_list
->data
.address16
.resource_type
& 0x03);
307 * Set the general flags
309 temp8
= (u8
) (linked_list
->data
.address16
.producer_consumer
& 0x01);
311 temp8
|= (linked_list
->data
.address16
.decode
& 0x01) << 1;
312 temp8
|= (linked_list
->data
.address16
.min_address_fixed
& 0x01) << 2;
313 temp8
|= (linked_list
->data
.address16
.max_address_fixed
& 0x01) << 3;
319 * Set the type specific flags
323 if (MEMORY_RANGE
== linked_list
->data
.address16
.resource_type
) {
325 (linked_list
->data
.address16
.attribute
.memory
.read_write_attribute
&
329 (linked_list
->data
.address16
.attribute
.memory
.cache_attribute
&
333 else if (IO_RANGE
== linked_list
->data
.address16
.resource_type
) {
335 (linked_list
->data
.address16
.attribute
.io
.range_attribute
&
343 * Set the address space granularity
345 MOVE_UNALIGNED16_TO_16 (buffer
,
346 &linked_list
->data
.address16
.granularity
);
350 * Set the address range minimum
352 MOVE_UNALIGNED16_TO_16 (buffer
,
353 &linked_list
->data
.address16
.min_address_range
);
357 * Set the address range maximum
359 MOVE_UNALIGNED16_TO_16 (buffer
,
360 &linked_list
->data
.address16
.max_address_range
);
364 * Set the address translation offset
366 MOVE_UNALIGNED16_TO_16 (buffer
,
367 &linked_list
->data
.address16
.address_translation_offset
);
371 * Set the address length
373 MOVE_UNALIGNED16_TO_16 (buffer
,
374 &linked_list
->data
.address16
.address_length
);
378 * Resource Source Index and Resource Source are optional
380 if (0 != linked_list
->data
.address16
.resource_source_string_length
) {
381 temp8
= (u8
) linked_list
->data
.address16
.resource_source_index
;
386 temp_pointer
= (NATIVE_CHAR
*) buffer
;
391 STRCPY (temp_pointer
, linked_list
->data
.address16
.resource_source
);
394 * Buffer needs to be set to the length of the sting + one for the
397 buffer
+= (STRLEN (linked_list
->data
.address16
.resource_source
) + 1);
401 * Return the number of bytes consumed in this operation
403 actual_bytes
= (u32
) ((NATIVE_UINT
) buffer
-
404 (NATIVE_UINT
) *output_buffer
);
406 *bytes_consumed
= actual_bytes
;
409 * Set the length field to the number of bytes consumed
410 * minus the header size (3 bytes)
413 MOVE_UNALIGNED16_TO_16 (length_field
, &actual_bytes
);
419 /*******************************************************************************
421 * FUNCTION: Acpi_rs_address32_resource
423 * PARAMETERS: Byte_stream_buffer - Pointer to the resource input byte
425 * Bytes_consumed - u32 pointer that is filled with
426 * the number of bytes consumed from
427 * the Byte_stream_buffer
428 * Output_buffer - Pointer to the user's return buffer
429 * Structure_size - u32 pointer that is filled with
430 * the number of bytes in the filled
433 * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
435 * DESCRIPTION: Take the resource byte stream and fill out the appropriate
436 * structure pointed to by the Output_buffer. Return the
437 * number of bytes consumed from the byte stream.
439 ******************************************************************************/
442 acpi_rs_address32_resource (
443 u8
*byte_stream_buffer
,
449 RESOURCE
*output_struct
;
456 buffer
= byte_stream_buffer
;
458 output_struct
= (RESOURCE
*) *output_buffer
;
460 struct_size
= sizeof (ADDRESS32_RESOURCE
) +
461 RESOURCE_LENGTH_NO_DATA
;
464 * Point past the Descriptor to get the number of bytes consumed
467 MOVE_UNALIGNED16_TO_16 (&temp16
, buffer
);
469 *bytes_consumed
= temp16
+ 3;
471 output_struct
->id
= address32
;
474 * Get the Resource Type (Byte3)
479 /* Values 0-2 are valid */
481 return (AE_AML_ERROR
);
484 output_struct
->data
.address32
.resource_type
= temp8
& 0x03;
487 * Get the General Flags (Byte4)
493 * Producer / Consumer
495 output_struct
->data
.address32
.producer_consumer
= temp8
& 0x01;
500 output_struct
->data
.address32
.decode
= (temp8
>> 1) & 0x01;
505 output_struct
->data
.address32
.min_address_fixed
= (temp8
>> 2) & 0x01;
510 output_struct
->data
.address32
.max_address_fixed
= (temp8
>> 3) & 0x01;
513 * Get the Type Specific Flags (Byte5)
518 if (MEMORY_RANGE
== output_struct
->data
.address32
.resource_type
) {
519 output_struct
->data
.address32
.attribute
.memory
.read_write_attribute
=
520 (u16
) (temp8
& 0x01);
522 output_struct
->data
.address32
.attribute
.memory
.cache_attribute
=
523 (u16
) ((temp8
>> 1) & 0x0F);
527 if (IO_RANGE
== output_struct
->data
.address32
.resource_type
) {
528 output_struct
->data
.address32
.attribute
.io
.range_attribute
=
529 (u16
) (temp8
& 0x03);
533 /* BUS_NUMBER_RANGE == Output_struct->Data.Address32.Resource_type */
534 /* Nothing needs to be filled in */
539 * Get Granularity (Bytes 6-9)
542 MOVE_UNALIGNED32_TO_32 (&output_struct
->data
.address32
.granularity
,
546 * Get Min_address_range (Bytes 10-13)
549 MOVE_UNALIGNED32_TO_32 (&output_struct
->data
.address32
.min_address_range
,
553 * Get Max_address_range (Bytes 14-17)
556 MOVE_UNALIGNED32_TO_32 (&output_struct
->data
.address32
.max_address_range
,
560 * Get Address_translation_offset (Bytes 18-21)
563 MOVE_UNALIGNED32_TO_32
564 (&output_struct
->data
.address32
.address_translation_offset
,
568 * Get Address_length (Bytes 22-25)
571 MOVE_UNALIGNED32_TO_32 (&output_struct
->data
.address32
.address_length
,
575 * Resource Source Index (if present)
580 * This will leave us pointing to the Resource Source Index
581 * If it is present, then save it off and calculate the
582 * pointer to where the null terminated string goes:
583 * Each Interrupt takes 32-bits + the 5 bytes of the
584 * stream that are default.
586 if (*bytes_consumed
> 26) {
587 /* Dereference the Index */
590 output_struct
->data
.address32
.resource_source_index
= (u32
)temp8
;
592 /* Point to the String */
596 /* Copy the string into the buffer */
600 while (0x00 != *buffer
) {
601 output_struct
->data
.address32
.resource_source
[index
] = *buffer
;
607 * Add the terminating null
609 output_struct
->data
.address32
.resource_source
[index
] = 0x00;
611 output_struct
->data
.address32
.resource_source_string_length
= index
+ 1;
614 * In order for the Struct_size to fall on a 32-bit boundry,
615 * calculate the length of the string and expand the
616 * Struct_size to the next 32-bit boundry.
618 temp8
= (u8
) (index
+ 1);
619 struct_size
+= ROUND_UP_TO_32_bITS (temp8
);
623 output_struct
->data
.address32
.resource_source_index
= 0x00;
624 output_struct
->data
.address32
.resource_source_string_length
= 0;
625 output_struct
->data
.address32
.resource_source
[0] = 0x00;
629 * Set the Length parameter
631 output_struct
->length
= struct_size
;
634 * Return the final size of the structure
636 *structure_size
= struct_size
;
642 /*******************************************************************************
644 * FUNCTION: Acpi_rs_address32_stream
646 * PARAMETERS: Linked_list - Pointer to the resource linked list
647 * Output_buffer - Pointer to the user's return buffer
648 * Bytes_consumed - u32 pointer that is filled with
649 * the number of bytes of the
652 * RETURN: Status AE_OK if okay, else a valid ACPI_STATUS code
654 * DESCRIPTION: Take the linked list resource structure and fills in the
655 * the appropriate bytes in a byte stream
657 ******************************************************************************/
660 acpi_rs_address32_stream (
661 RESOURCE
*linked_list
,
668 NATIVE_CHAR
*temp_pointer
;
671 buffer
= *output_buffer
;
674 * The descriptor field is static
680 * Set a pointer to the Length field - to be filled in later
683 length_field
= (u16
*)buffer
;
687 * Set the Resource Type (Memory, Io, Bus_number)
689 temp8
= (u8
) (linked_list
->data
.address32
.resource_type
& 0x03);
695 * Set the general flags
697 temp8
= (u8
) (linked_list
->data
.address32
.producer_consumer
& 0x01);
698 temp8
|= (linked_list
->data
.address32
.decode
& 0x01) << 1;
699 temp8
|= (linked_list
->data
.address32
.min_address_fixed
& 0x01) << 2;
700 temp8
|= (linked_list
->data
.address32
.max_address_fixed
& 0x01) << 3;
706 * Set the type specific flags
710 if(MEMORY_RANGE
== linked_list
->data
.address32
.resource_type
) {
712 (linked_list
->data
.address32
.attribute
.memory
.read_write_attribute
&
716 (linked_list
->data
.address32
.attribute
.memory
.cache_attribute
&
720 else if (IO_RANGE
== linked_list
->data
.address32
.resource_type
) {
722 (linked_list
->data
.address32
.attribute
.io
.range_attribute
&
730 * Set the address space granularity
732 MOVE_UNALIGNED32_TO_32 (buffer
,
733 &linked_list
->data
.address32
.granularity
);
737 * Set the address range minimum
739 MOVE_UNALIGNED32_TO_32 (buffer
,
740 &linked_list
->data
.address32
.min_address_range
);
744 * Set the address range maximum
746 MOVE_UNALIGNED32_TO_32 (buffer
,
747 &linked_list
->data
.address32
.max_address_range
);
751 * Set the address translation offset
753 MOVE_UNALIGNED32_TO_32 (buffer
,
754 &linked_list
->data
.address32
.address_translation_offset
);
758 * Set the address length
760 MOVE_UNALIGNED32_TO_32 (buffer
,
761 &linked_list
->data
.address32
.address_length
);
765 * Resource Source Index and Resource Source are optional
767 if (0 != linked_list
->data
.address32
.resource_source_string_length
) {
768 temp8
= (u8
) linked_list
->data
.address32
.resource_source_index
;
773 temp_pointer
= (NATIVE_CHAR
*) buffer
;
778 STRCPY (temp_pointer
, linked_list
->data
.address32
.resource_source
);
781 * Buffer needs to be set to the length of the sting + one for the
784 buffer
+= (STRLEN (linked_list
->data
.address32
.resource_source
) + 1);
788 * Return the number of bytes consumed in this operation
790 *bytes_consumed
= (u32
) ((NATIVE_UINT
) buffer
-
791 (NATIVE_UINT
) *output_buffer
);
794 * Set the length field to the number of bytes consumed
795 * minus the header size (3 bytes)
797 *length_field
= (u16
) (*bytes_consumed
- 3);